This is a pretty tough problem to give any answer with complete certainty.
I work at an authorized kenwood service center and it is rare that I see one with this particular problem. I fix about 5 to 10 kenwoods every week.
Since it does not recognise the cd player at all, it could be the one of the supply voltages that feed the cd deck.
It has 3 different supplies for the cd player.
On pin 2 of the connector is the first one I would suspect, it is around 8 volts. If that is missing there are 3 components I would look at. The first one is D5. It is a 8.2 volt zener diode. This is one that could be shorted and if it is the cd deck may not be recognized.
The next 2 components I would check would be Q9 and Q10.
If one of those are open or shorted you will get the same problem. Q9 is a 2SB1443 and Q10 is 2SC4081
if you plan on troubleshootng it yourself, I will post the other data for the other 2 supplies after you reply back.
In any case, I don't think that this is a problem that anybody can fix without some serious electronic troubleshooting.
sorry to say, there is no easy fix on this one.
Hope this was some help
Jun 18, 2008 |
Kenwood KDC-MP528 CD Player